Unifying flight formats II
In the previous exercise, you used CONCAT()
, REPLICATE()
, and LEN()
. You got every register with more than 100 delays from the flight_statistics
table. In a unique column, you concatenated the carrier_code
, registration_code
, and airport_code
, having a similar format to this one: "AA - 0000119, JFK"
.
In this exercise, you will solve the same problem again, this time using the FORMAT()
and CONCAT()
functions together.
This exercise is part of the course
Cleaning Data in SQL Server Databases
Exercise instructions
- Concatenate the
carrier_code
, formattedregistration_code
, andairport_code
together using the appropriate function. - Format the
registration_code
column while casting it as an integer. - Filter registers with more than 100 delays.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
SELECT
-- Concat the strings
___(
carrier_code,
' - ',
-- Format the code
___(___(registration_code AS INT), '0000000'),
', ',
airport_code
) AS registration_code
FROM flight_statistics
-- Filter registers with more than 100 delays
WHERE ___ > 100